blued chopping knide with wooden handle

例句：

1. 1. The blue sky is a beautiful backdrop for the sunset.
   蔚蓝的天空为日落提供了美丽的背景。
2. 2. The blue dress she wore looked elegant and sophisticated.
   她穿的那件蓝色连衣裙看起来既优雅又时髦。
3. 3. He decided to blue the walls of his new office.
   他决定给新办公室的墙壁涂上蓝色。